test/CodeGen/WebAssembly/mem-intrinsics-offsets.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mcpu=mvp -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s

; This test ensures that loads and stores generated for small memcpy et al use
; constant offset folding.


target triple = "wasm32-unknown-unknown"

define void @call_memset(ptr) #0 {
; CHECK-LABEL: call_memset:
; CHECK:         .functype call_memset (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i64.const $push0=, 0
; CHECK-NEXT:    i64.store 8($0):p2align=0, $pop0
; CHECK-NEXT:    i64.const $push1=, 0
; CHECK-NEXT:    i64.store 0($0):p2align=0, $pop1
; CHECK-NEXT:    # fallthrough-return
    call void @llvm.memset.p0.i32(ptr align 1 %0, i8 0, i32 16, i1 false)
    ret void
}

define void @call_memcpy(ptr %dst, ptr %src) #0 {
; CHECK-LABEL: call_memcpy:
; CHECK:         .functype call_memcpy (i32, i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i64.load $push0=, 8($1):p2align=0
; CHECK-NEXT:    i64.store 8($0):p2align=0, $pop0
; CHECK-NEXT:    i64.load $push1=, 0($1):p2align=0
; CHECK-NEXT:    i64.store 0($0):p2align=0, $pop1
; CHECK-NEXT:    # fallthrough-return
    call void @llvm.memcpy.p0.p0.i32(ptr align 1 %dst, ptr align 1 %src, i32 16, i1 false)
    ret void
}


define void @call_memmove(ptr %dst, ptr %src) #0 {
; CHECK-LABEL: call_memmove:
; CHECK:         .functype call_memmove (i32, i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i64.load $2=, 0($1):p2align=0
; CHECK-NEXT:    i64.load $push0=, 8($1):p2align=0
; CHECK-NEXT:    i64.store 8($0):p2align=0, $pop0
; CHECK-NEXT:    i64.store 0($0):p2align=0, $2
; CHECK-NEXT:    # fallthrough-return
    call void @llvm.memmove.p0.p0.i32(ptr align 1 %dst, ptr align 1 %src, i32 16, i1 false)
    ret void
}